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          Mysql 用户、权限管理
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        <h2 id="创建用户"><a href="#创建用户" class="headerlink" title="创建用户"></a>创建用户</h2><pre class="line-numbers language-sql" data-language="sql"><code class="language-sql">mysql<span class="token operator">></span> <span class="token keyword">create</span> <span class="token keyword">user</span> <span class="token string">'用户名'</span><span class="token variable">@'主机地址'</span> identified <span class="token keyword">by</span> <span class="token string">'密码'</span><span class="token punctuation">;</span><span aria-hidden="true" class="line-numbers-rows"><span></span></span></code></pre>
<h2 id="修改用户密码"><a href="#修改用户密码" class="headerlink" title="修改用户密码"></a>修改用户密码</h2><pre class="line-numbers language-sql" data-language="sql"><code class="language-sql">mysql<span class="token operator">></span> <span class="token keyword">alter</span> <span class="token keyword">user</span> <span class="token string">'用户名'</span><span class="token variable">@'主机地址'</span> identified <span class="token keyword">by</span> <span class="token string">'密码'</span><span class="token punctuation">;</span><span aria-hidden="true" class="line-numbers-rows"><span></span></span></code></pre>
<h2 id="修改用户名"><a href="#修改用户名" class="headerlink" title="修改用户名"></a>修改用户名</h2><pre class="line-numbers language-sql" data-language="sql"><code class="language-sql">mysql<span class="token operator">></span> <span class="token keyword">rename</span> <span class="token keyword">user</span> <span class="token string">'旧用户'</span><span class="token variable">@'主机名'</span> <span class="token keyword">TO</span> <span class="token string">'新用户名'</span><span class="token variable">@'主机名'</span><span class="token punctuation">;</span><span aria-hidden="true" class="line-numbers-rows"><span></span></span></code></pre>
<h2 id="用户权限"><a href="#用户权限" class="headerlink" title="用户权限"></a>用户权限</h2><pre class="line-numbers language-sql" data-language="sql"><code class="language-sql">mysql<span class="token operator">></span> <span class="token keyword">grant</span> 权限列表 <span class="token keyword">on</span> 库<span class="token punctuation">.</span>表 <span class="token keyword">to</span> <span class="token string">'用户名'</span><span class="token variable">@'主机地址'</span><span class="token punctuation">;</span>
mysql<span class="token operator">></span> flush <span class="token keyword">privileges</span><span class="token punctuation">;</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span></span></code></pre>
<table>
<thead>
<tr>
<th align="center">权限</th>
<th align="center">作用范围</th>
<th align="center">作用</th>
</tr>
</thead>
<tbody><tr>
<td align="center">all</td>
<td align="center">服务</td>
<td align="center">所有权限</td>
</tr>
<tr>
<td align="center">select</td>
<td align="center">表、列</td>
<td align="center">选择行</td>
</tr>
<tr>
<td align="center">insert</td>
<td align="center">表、列</td>
<td align="center">插入行</td>
</tr>
<tr>
<td align="center">update</td>
<td align="center">表、列</td>
<td align="center">更新行</td>
</tr>
<tr>
<td align="center">delete</td>
<td align="center">表</td>
<td align="center">删除行</td>
</tr>
<tr>
<td align="center">create</td>
<td align="center">数据库、表、索引</td>
<td align="center">创建</td>
</tr>
<tr>
<td align="center">drop</td>
<td align="center">数据库、表、视图</td>
<td align="center">删除</td>
</tr>
<tr>
<td align="center">reload</td>
<td align="center">服务器</td>
<td align="center">允许使用flush语句</td>
</tr>
<tr>
<td align="center">shutdown</td>
<td align="center">服务器</td>
<td align="center">关闭服务</td>
</tr>
<tr>
<td align="center">process</td>
<td align="center">服务器</td>
<td align="center">查看线程信息</td>
</tr>
<tr>
<td align="center">file</td>
<td align="center">服务器</td>
<td align="center">文件操作</td>
</tr>
<tr>
<td align="center">grant option</td>
<td align="center">数据库、表、存储过程</td>
<td align="center">授权</td>
</tr>
<tr>
<td align="center">references</td>
<td align="center">数据库、表</td>
<td align="center">外键约束的父表</td>
</tr>
<tr>
<td align="center">index</td>
<td align="center">表</td>
<td align="center">创建/删除索引</td>
</tr>
<tr>
<td align="center">alter</td>
<td align="center">表</td>
<td align="center">修改表结构</td>
</tr>
<tr>
<td align="center">show databases</td>
<td align="center">服务器</td>
<td align="center">查看数据库名称</td>
</tr>
<tr>
<td align="center">super</td>
<td align="center">服务器</td>
<td align="center">超级权限</td>
</tr>
<tr>
<td align="center">create temporary tables</td>
<td align="center">表</td>
<td align="center">创建临时表</td>
</tr>
<tr>
<td align="center">lock tables</td>
<td align="center">数据库</td>
<td align="center">锁表</td>
</tr>
<tr>
<td align="center">execute</td>
<td align="center">存储过程</td>
<td align="center">执行</td>
</tr>
<tr>
<td align="center">replication client</td>
<td align="center">服务器</td>
<td align="center">允许查看主/从/二进制日志状态</td>
</tr>
<tr>
<td align="center">replication slave</td>
<td align="center">服务器</td>
<td align="center">主从复制</td>
</tr>
<tr>
<td align="center">create view</td>
<td align="center">视图</td>
<td align="center">创建视图</td>
</tr>
<tr>
<td align="center">show view</td>
<td align="center">视图</td>
<td align="center">查看视图</td>
</tr>
<tr>
<td align="center">create routine</td>
<td align="center">存储过程</td>
<td align="center">创建存储过程</td>
</tr>
<tr>
<td align="center">alter routine</td>
<td align="center">存储过程</td>
<td align="center">修改/删除存储过程</td>
</tr>
<tr>
<td align="center">create user</td>
<td align="center">服务器</td>
<td align="center">创建用户</td>
</tr>
<tr>
<td align="center">event</td>
<td align="center">数据库</td>
<td align="center">创建/更改/删除/查看事件</td>
</tr>
<tr>
<td align="center">trigger</td>
<td align="center">表</td>
<td align="center">触发器</td>
</tr>
<tr>
<td align="center">create tablespace</td>
<td align="center">服务器</td>
<td align="center">创建/更改/删除表空间/日志文件</td>
</tr>
<tr>
<td align="center">proxy</td>
<td align="center">服务器</td>
<td align="center">代理成为其它用户</td>
</tr>
<tr>
<td align="center">usage</td>
<td align="center">服务器</td>
<td align="center">没有权限</td>
</tr>
</tbody></table>
<h2 id="删除用户"><a href="#删除用户" class="headerlink" title="删除用户"></a>删除用户</h2><pre class="line-numbers language-sql" data-language="sql"><code class="language-sql">mysql<span class="token operator">></span> <span class="token keyword">drop</span> <span class="token keyword">user</span> <span class="token string">"用户名"</span><span aria-hidden="true" class="line-numbers-rows"><span></span></span></code></pre>




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